SERIES 230 C2ADTL Transfer Switch User Manual

Transcription

1 SERIES 230 C2ADTL Transfer Switch User Manual Version V1.2 Revision Date Feb 25, 2013 BOM Code Emerson Network Power provides customers with technical support. Users may contact the nearest Emerson Network Power sales office or service center. Copyright 2012 by Emerson Network Power Co., Ltd. All rights reserved. The contents in this document are subject to change without any prior notice. Emerson Network Power Co., Ltd. Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District , Shenzhen China Website: Customer Service Hotline:

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3 Contents Chapter 1 Overview Model Description and Order Information Model Description Configuration Description and Number of Poles Accessory Model Description and Order Information Appearance Product Composition Panel Description Application Environment Technical Parameters... 5 Chapter 2 Installation And Operation Installation Installation of Transfer Switch Accessory Installation Operation Manual Operation Auto Operation Padlock Chapter 3 Maintenance and Troubleshooting Start Up / Function Test Maintenance Common Troubleshooting Appendix 1 Surge Protection Device Appendix 2 Glossary... 20

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5 Chapter 1 Overview 1 Chapter 1 Overview ASCO Series 230 C2ADTL transfer switch is a professional PC class dual power transfer switch. It adopts a reliable mechanism and an electric design built on a modular concept, and is suitable for various electric continuity applications. All Series 230 transfer switch products meet EN and IEC requirements. This chapter will introduce the model description, appearance, product composition, application environment and mechanical parameters of this transfer switch. 1.1 Model Description and Order Information Model Description Taking C2ADTLB30250HE00 as an example, the model description is shown in Table Table 1-1 Model Description and Order Information C2ADTL B H E Series 230 C2ADTL Automatic Transfer Switch Number of Poles, Configuration Rated Operating Current Code Rated Operating Voltage Code Controller Accessory C2ADTL B1 Description Series 230 C2ADTL Automatic Transfer Switch Center-off (three-position design) 2 Poles (Sigle Phase 220V-240V, 2-Wire with Neutral Line) 02 2 Poles (Two Phase 220V-240V, 2-Wire without Neutral Line) B2 3 Poles (Two Phase 220V-240V, 3-Wire with Neutral Line) 03 3 Poles (Three Phase 380V-415V, 3-Wire without Neutral Line) B A A A A A A A A A A A A A A D E F H J K D E 4 Poles (Three Phase 380V-415V, 4-Wire with Neutral Line) 220V 230V 240V 380V 400V 415V C1000 Controller C2000 Controller 0 No accessory 7 Enclosure 0 No enclosure X With accessory, Such as: Auxilianry Contact 132A~132F Notes: Default frequency setting is 50Hz. If application frequency requires 60Hz, please indicate this when ordering Series 230 product.

6 2 Chapter 1 Overview Configuration Description and Number of Poles Accessory Model Description and Order Information Auxiliary Contacts (Optional Accessory) 132 A A Auxiliary Contact Quantity Blank: 1 Contact A: 2 Contacts B: 3 Contacts C: 4 Contacts Function Code (See Diagram Below) 132A-132F: Auxiliary Contact Auxiliary Contact For example: 132BA, means 2 contacts, closed when the ATS transfer to source II position. The Auxiliary Contact Code Definitions 132A-132C : The auxiliary contacts can be used to indicate positions with the CLOSE contact, see Schematic D-132F: The auxiliary contacts can be used to indicate positions with the OPEN contact, see Schematic 2. Position of The transfer switch Auxiliary Contact Function Code Position of The transfer switch Auxiliary Contact Function Code Schematic 1 132A-132C Diagram Schematic 2 132D-132F Diagram

7 Chapter 1 Overview Appearance The appearance of the transfer switch is shown in Figure 1-1. Figure 1-1 Appearance 1.3 Product Composition Series 230 automatic transfer switch includes one transfer switch and one controller. The C2ADTL Size has multiple ampere rating options. Series 230 transfer switch unit can work with either the C1000 or C2000 controller. The following accessories are included as standard in the Series 230 C2ADTL automatic transfer switch package, see Table 1-2: Table 1-2 Series 230 C2ADTL Transfer Switch Standard Accessories Standard Accessories Model and Specification Part Number 2-Pole 3-Pole 4-Pole Mounting Fastener Package M Pack 1 Pack 1 Pack Terminal Screws M Terminal Washers D Terminal Nuts M pcs 12 pcs 16 pcs Bridging Busbar LBP1F pcs 3 pcs 4 pcs Pole Partition LIP1F pcs 8 pcs 12 pcs Handle LHS3F pcs 1 pcs 1 pcs Connection Cable Power Cable & Signal Cable set 1 set 1 set Fuse MXP/UDA pcs 2 pcs 2 pcs User Manual Series 230 C2ADTL Transfer Switch User Manual copy 1 copy 1 copy The following accessories are included as optional in the Series 230 C2ADTL automatic transfer switch package, see Table 1-3: Table 1-3 Series 230 C2ADTL Transfer Switch Optional Accessories Function Code Accessories Name Model and Specification Part Number Quantity 132A,132AA,132AB,132AC Auxiliary Contact (NO) LAP1F ,2,3, or 4 132B,132BA,132BB,132BC Auxiliary Contact (NO) LAP1F ,2,3, or 4 132C,132CA,132CB,132CC Auxiliary Contact (NC) LAP1F ,4,6, or 8 132D,132DA,132DB,132DC Auxiliary Contact (NC) LAP1F ,2,3, or 4 132E,132EA,132EB,132EC Auxiliary Contact (NC) LAP1F ,2,3, or 4 132F,132FA,132FB,132FC Auxiliary Contact (NO) LAP1F ,4,6, or 8 Note: The optional accessories are an additional order item.

8 4 Chapter 1 Overview 1.4 Panel Description For the transfer Switch panel description, see Figure 1-2. Source I Line Side Arc Chamber Source II Line Side Fuse Position Indicator Window Nameplate Label Auxiliary Contact Mounting Positions Label Cover Auto/Manual Toggle Switch Padlock Pull Tab Operating Handle Hole Source I Load Side Source II Load Side Figure 1-2 Panel Description 1.5 Application Environment Altitude: 2000 meter or less Temperature: -5 C to +40 C Humidity: Within 95%, No condensation Pollution Class: Class III Mounting Method: Horizontal or Vertical Product Standards Met: EN and IEC Environmental Standards Met: RoHS and WEEE

9 Chapter 1 Overview Technical Parameters For the technical parameters, see Table1-4. Table 1-4 Technical Parameters Item Rated Operating Voltage Ue (Vac) Operating Voltage Range (V) 220 / 230 / 240(2 poles) Parameter 380 / 400 / 415(3 poles / 4 poles) Ue=220 / 230 / 240 / 380 / 400 Ue= 415 (0.7~1.2) Ue (0.7~1.15) Ue Utilization Category AC-33B Rated Insulation Voltage Ui (V) 800 Rated Impulse Withstand Voltage Uimp (kv) 12 Rated Short-time Making Capacity Icm (peak) (ka) 31.5 Rated Short-circuit Withstand Current Icw (ka/0.1s) 15 Rated Conditional Short-circuit Current Iq (rms) (ka) 200(FUSE)/150(MCCB) Operating Transfer Time (s) <2.5

10 6 Chapter 2 Installation And Operation Chapter 2 Installation And Operation! DANGER DANGER is used in this manual to warn of a hazard situation which, if not avoided, will result in death or serious injury.! WARNING WARNING is used in this manual to warn of a hazardous situation which, if not avoided, could result death or serious injury.! CAUTION CAUTION is used in this manual to warn of a hazardous situation which, if not avoided, could result in minor or moderate injury. NOTICE NOTICE is used in this manual to comments or suggestion of a fault situation which, if not avoided, could result in fault. An experienced licensed electrician must install the ATS. Each automatic transfer switch contains a rating label (Name plate) to define the loads (Ampere rating). Refer to the label on the transfer switch for specific values.! DANGER Do not exceed the values on the rating label. Exceeding the rating can cause personal injury or serious equipment damage.

11 Chapter 2 Installation And Operation Installation 1. Connect with the controller See the corresponding controller user manual for controller installation details. 2. Connect Surge Protection Device The Automatic transfer switch is connected to an electronic circuit with a power supply, that is vulnerable to overvoltage damage, therefore, it is recommended that users install Class C Surge Protection Devices when using automatic transfer switches, and the right wiring methods. See Appendix 1 (Surge Protection Device) for additional details and recommended wiring methods Installation of Transfer Switch Install the transfer switch to the cabinet according to the mounting dimensions shown in Figure B A C Figure 2-1 Mounting Dimension (unit: mm)! WARNING Recommended torque to be used for transfer switch mounting screws during installation: M5: 3N m. Dimensions of A, B, and C in Figure 2-1 are shown in Table 2-1.

12 8 Chapter 2 Installation And Operation Table 2-1 A, B, and C Dimensions 2 Pole 3 Pole 4 Pole A (mm) B (mm) C (mm) Weight (KG) Accessory Installation 1. Bridging Busbar It is used to connect the switch I and II load side terminals together. The installation procedures are as follows: 1) Identify the transfer switch load side terminals. 2) As shown in Figure 2-2, insert the bridging busbar between the Source I load side terminal and the Source II load side terminal with the long center plate of bridging busbar against the arc chamber wall surface. 3) Fix the bridging busbar with M10 30 terminal screws included with the package. Source II Load Terminal Load Connection busbar Bolt assembly Source I Connection busbar Load Side Washer Nut Line Side Source II Load Terminal Bridging busbar Source II Connection busbar Figure 2-2 Installation of Bridging Busbar! WARNING 1. Make sure to install the bridging busbar in such a way that its long center plate must make solid contact with the arc chamber surface. 2. The bridging busbar can only be used for the LOAD SIDE of the switch. 3. Recommended torque to be used for the bridging busbar connecting screws: M8: 11N m. 2. Pole Partition The pole partition is used to isolate and insulate the poles and ensure electric safety. The installation procedures are as follows: 1) The pole partition as shown in Figure 2-3. Gap Figure 2-3 Pole Partition

13 Chapter 2 Installation And Operation 9 2) Remove all label covers on the arc chamber: A/B/C/N. Insert the first pole partition between two arc chambers with the gap facing DOWN and insert another pole partition with the gap facing upward. Repeat for each slot between each pole. When finished, snap each label cover back into its original position. Make sure that the correct label (LINE versus LOAD) is showing on the correct side. See Figure 2-4 for more details. Label Cover Line Side Gap A B C N Gap Gap Down Load Side Gap Figure 2-4 Pole Partition Installation! CAUTION 1. The gap in the pole partition is used to make room for the label covers and the base of the switch. If the gap is inserted in the wrong direction, the label cover will not be able to be snapped back into position correctly. 2. Make sure that the correct label (LINE versus LOAD) is showing on the correct side AND make sure that the corresponding phase labels on the cover (A/B/C/N) are in their correct positions as well with A Phase being closest to the main gear driver box area. 3. Auxiliary Contacts (Optional Accessory) There are many different optional auxiliary contact configurations available for the C2ADTL TS unit, See the Figure 2-5 below for what options exists. 132A 132AA 132AB 132AC 132B 132BA 132BB 132BC 132C 132CA 132CB 132CC

14 10 Chapter 2 Installation And Operation 132D 132DA 1 132DB 132DC 132E 132EA 132EB 132EC 132F 132FA 132FB 132FC Figure 2-5 Auxiliary Contact Order Code and Installation The Auxiliary Contact Locations are shown in Figure 2-6. Location I Auxiliary Contact Mounting Location II Auxiliary Contact Mounting The installation procedures are as follows: Figure 2-6 Auxiliary Contact Location Definition 1. With the auxiliary contact screw holes facing outward, snap the 4 claws into the corresponding 4 holes on the transfer switch side plate, and then force it into position, as shown in Figure 2-7.

15 Chapter 2 Installation And Operation 11 Screw Hole Face Out Screw Hole Face Out Figure 2-7 Auxiliary Contact Installation to Side Plate 2. When mounting an additional auxiliary contact on top of another contact, remove the sticker located in the center of the contact that is being mounted, then like before, with the screw holes facing outward, snap the 4 claws into the corresponding 4 holes on the previously installed auxiliary contact and then force it into position, as shown in Figure 2-8. If installing an additional auxiliary contact on top of another, need to remove sticker on the base auxiliary contact, otherwise do not remove sticker to protect auxiliary contact from dust debris. Sticker No Sticker Sticker Figure 2-8 Auxiliary Contact Installation on Top of Another Contact NOTICE 1. The center sticker on the auxiliary contact that is in direct contact with the side plate must be removed before installation of the additional auxilary contact on top of it. 2. Keep the center sticker on the outer most auxiliary contact in place to avoid any debris or dust from getting inside. 3. The maximum auxiliary contacts that can be used on the side plate are 8 contact s, or 2 contacts per slot location. There are 4 slot locations. 3. Next, punch out the small holes on the side plate in order to insert the cable clamps into the small round holes on the transfer switch side plate. See figure 2-9. There should be 2 clamps packaged together with each optional auxiliary contact. Figure 2-9 Cable Clamp 4. After wiring the auxiliary contacts, affix the corresponding cable with the closest cable clamp using a cable tie to facilitate and optimize the wiring layout as shown in Figure 2-10.

16 12 Chapter 2 Installation And Operation Punch out the small holes, Then insert cable clamp 5. Auxiliary Contact Specifications: a) Ratings: Figure 2-10 Schematic Diagram for Cable Routing Rated thermal current Ith /A Rated insulation voltage V Rated impulse withstand voltage Uimp/kV Protection class of enclosure Pollution degree Maximum cable cross section IP mm 2 b) Additional Information: AC-15 DC-12 DC-13 U e / V I e / A U e / V I e / A P / W I e / A P / W ! CAUTION In order to obtain higher reliability, the auxiliary contact circuit should meet the requirments: Current 5mA

17 Chapter 2 Installation And Operation Operation Manual Operation The procedures are as follows: 1. Move the auto/manual toggle switch from AUTO (automatic) to MANUAL position, as shown in Figure Figure 2-11 Switching the toggle Switch from AUTO to MANUAL! CAUTION Make sure toggle switch lines up with the correct indication position mark Indication Position Mark 2. Insert the operating handle into the handle hole, and rotate the handle according to the position and direction shown in the position indicator widow. 1) When the window initially displays OFF (Center-off Position), do the following operations as needed: If you need to switch to Position I (Normal Source), rotate the handle 90 degrees counter-clockwise. After hearing a click', and the window displays I, it indicates that the position has been successfully switched to Position I. If you need to switch to Position II (Emergency Source), rotate the handle 90 degrees clockwise. After hearing a click', and the window displays II, it indicates that the position has successfully switched to Position II. 2) When the window initially displays I (Normal Source), do the following operations as needed: If you need to switch it to the Position OFF (Center-Off Position), rotate the handle 90 degrees clockwise. After hearing a 'click', and the window displays OFF, it indicates that the position has successfully switched to Position OFF. If you need to switch it to Position II (Emergency Source), rotate the handle 180 degrees clockwise. After hearing a 'click, and the window displays II, it indicates that the position has successfully switched to Position II. 3) When the window initially displays II (Emergency Source), do the following operations as needed: If you need to switch it to the OFF Position (Center-off Position), rotate the handle 90 degrees counter-clockwise. After hearing a 'click', and the window displays OFF, it indicates that the position has successfully switched to the Position OFF. If you need to switch it to Position I (Normal Source), rotate the handle 180 degrees counter-clockwise. After hearing a 'click', and the window displays I, it indicates that the position has successfully switched to Position I. The detailed handle rotation positions are shown in Figure 2-12.

18 14 Chapter 2 Installation And Operation I (Normal Source) OFF (Center-off Position) II (Emergency Source) I (Normal Source) II (Emergency Source) OFF (Center-off Position) If Initial Position is Position OFF If Initial Position is Position I If Initial Position is Position II Figure 2-12 Switch Rotation Diagram! CAUTION 1. If the toggle switch is not in the right position (MANUAL), the handle cannot be inserted. 2. The manual handle operation torque should more than 16Nm. 3. Due to high torque of the handle during operation, the operator should be careful to avoid from getting injured from touching the toggle switch and padlock pull tab objects portruding from the surface Auto Operation 1. Remove the operating handle from the handle hole. 2. Move the auto/manual toggle switch from MANUAL to AUTO Position, as shown in Figure Figure 2-13 Switching Toggle from MANUAL to AUTO! CAUTION Make sure toggle switch lines up with the correct indication position mark Indication Position Mark 3. Once auto/manual toggle switch is in the 'AUTO' Position, the switch will automatically transfer to the position that is currently set in the controller. (For a description of how to set the positions in the controller, refer to the Series 230 C1000 Controller User Manual or Series 230 C2000 Controller User Manual) Padlock! WARNING 1.If the handle has not been removed, the auto/manual toggle switch cannot be switched to the 'AUTO' Position. 2.After the manual operation, the operator must ensure that the auto/manual toggle switch moves back to the 'AUTO' Position, and the auto/manual toggle switch lines up with the 'AUTO' Position indicator mark. Otherwise, the transfer switch will not work in Automatic Mode. In order for the Padlock Pull Tab to function properly, one must ensure that the switch is in Manual Mode AND the handle is in the Position Off. To do this, do the following in this order: 1. Ensure that the auto/manual toggle switch is in MANUAL position.! CAUTION If the auto/manual toggle switch is not in MANUAL position, the padlock pull-tab cannot be pulled up.

19 Chapter 2 Installation And Operation Ensure that OFF is displayed in the position indicator window. If not, use the manual operating handle to switch the transfer switch to Position OFF according to the directions shown in the position indicator window.! CAUTION When the switch is not in OFF Position, the padlock pull-tab cannot be pulled in place. 3. Finally, pull the padlock pull-tab out and lift up to expose the lock hole. Then insert the proper padlock into the hole to lock it.! CAUTION The specified diameter of the C2ADTL transfer switch padlock must be φ5mm to φ6mm.

20 16 Chapter 3 Maintenance and Troubleshooting Chapter 3 Maintenance and Troubleshooting This chapter describes the transfer switch installation, commissioning and common faults and maintenance methods. 3.1 Start Up / Function Test 1. To Test Manual Operation Two power supply Sources must be disconnected before manual testing can begin. Refer to chapter to run Manual Operation mode. Operate the transfer switch from I position to II position and turn back to I position with handle. The operation should be smooth, without interruption. If so, switch is operating correctly in manual mode. 2. To Verify Voltage Detection First make sure the rated voltage of the transfer switch on the nameplate is the same as the dual-power supply rated voltages. Next, review the C2000 or the C1000 controller, to make sure the power is being supplied to transfer switch. Source I and Source II Auxiliary Indication LED lights are on (green), This should indicate your wiring is correct. If using the C2000 controller, Double-check and measure the dual-supply voltage, to make sure voltages are consistent to what is indicated on the C2000 controller.! DANGER When measuring Voltage, pay attention to not touch the terminals and copper bars, otherwise it could result in death, or serious injury. 3. To Test Electric Operation This is used to test the controller in electric operation mode and operate the transfer switch electrically. Using C2000 controller: Menu Setting 2. Settings Control Menu Operation Description Up Enter Down Settings Scrolling the main menu to Setting,and press Enter button. 2.4 Control Mode S1 Prior Up Down Control Mode Scrolling the Setting menu to Control Mode,and press Enter button. The Control Mode Menu will display the last settings.for example,the default control mode is S1 Prior. Enter 2.4 Control Mode Manual Control Up Enter Down Control Mode Scrolling the Control Mode menu to Manual Control,and press Enter button.and then setting is ok,system will be reset. Must press the Enter button when the Control Mode is setted,the contorller will be reset to complete the set.

21 Chapter 3 Maintenance and Troubleshooting 17 Once you, successfully set up the manual control mode, the Auto LED on the controller panel will blink. (1) Electric Operation Test The transfer switch can now transfer and return. The operation should be smooth. Description of the operation is as follows. 7. Manu Control Manu Action Up Enter Down Menu Operation Description Manu Control Scrolling the main menu to Manu Control,and press Enter button. 7.1 Switch Ctrl Action Up Down Switch Ctrl Next,Scrolling the menu to Switch Control,and press Enter button. Enter 7.1 Switch Ctrl X->II Up Enter Down Switch Ctrl Then Scrolling the menu to the target location,such as the transfer switch is in location I,scrolling the menu to X II and press Enter button,the switch should be transferred to Location II. Operate the switch again,it can be tansferred to Location I,Location OFF or Location II.If the switch is in Location I,scrolling the menu to X I and press Enter,the switch will not tranfer. (2) Return To The Original Control Mode settings. After completing the electric operation test, you can return to the original control mode by using the menu Using C1000 Controller: (1) According to The 230 Series Automatic Transfer Switch C1000 Intelligent Controller User Manual, the DIP 7-8 is set to ON, ON, the run LED will blink, and one of the switch s Position Indication LED s will blink, The controller is now in manual control mode. (2) The blinking LED is the target position that the switch will transfer to. Press the key less than 3 seconds, the position indication LED will blink alternately to show which position is target transfer. Choose a transfer target position. (3) Press the key 3 Sec, and the switch will transfer to the target position. (4) The switch can transfer and return by this method, and the operation should be smooth. (5) According to The 230 Series Automatic Transfer Switch C1000 Intelligent Controller User Manual, the DIP 7-8 is set to automatic or remote Mode, and the controller will exit manual control mode.

22 18 Chapter 3 Maintenance and Troubleshooting 3.2 Maintenance To ensure consistent reliability of the transfer switch to make sure it is operating normally, regular maintenance testing should be conducted. It is recommended to do so once every three months. 3.3 Common Troubleshooting Table 3-1 Troubleshooting Guideline Troubleshooting Issues No response in auto mode The handle cannot be inserted in order to operate the switch manually. Once handle is inserted, one cannot operate the handle The auto/manual toggle switch cannot be set to 'AUTO' Position The padlock pull-tab cannot be pulled up Recommended Action Check if the auto/manual toggle switch is in 'AUTO' Position. Check if the wiring is routed correctly Check if the power supply meets the rated voltage range. Check if the fuse is properly installed and /or destroyed Check if the auto/manual toggle switch is in 'MANUAL' Position Check if the transfer switch has been locked. Check if the handle is turning in the correct direction based on Chapter Check if operator is applying enough force to handle (recommend operating torque is greater than16n m) Check to make sure the handle has been removed from the handle hole. Check to make sure the padlock pull-tab has been pushed all the way down to the original unlocked position. Check if OFF is displayed in the position indicator window. Check to make sure the auto/manual toggle switch is in 'MANUAL' Position For all other issues, please contact Emerson Network Power. Check and Replace Fuse: 1. Before checking the condition of the fuse, the operator MUST switch the manual/auto toggle switch to the 'MANUAL' Position. 2. Then, the operator can open the fuse housing cover, take out the fuse, and check the fuse resistance by ohmmeter or multi-meter to determine if fuse is blown out or not. 3. If fuse is blown out (damaged), then replace it using an equivalent rated fuse. For more information, go to Table 1-2. Finally, close the fuse housing cover. 4. After new fuse has been replaced, and if the operator wants to use Auto Mode, then switch the manual/auto toggle switch back to the 'AUTO' Position.! DANGER 1. Only a professional electrician should operate to check and replace the the fuse. Such a person MUST be equiped with insulated rubber boots, insulated gloves, and insulated tools. 2. Before removing the damaged fuse, the operator MUST switch the manual/auto toggle switch to the 'MANUAL' Position.

23 Appendix 1 19 Appendix 1 Surge Protection Device 1. In order to run the Automatic Transfer Switch reliably, SPD s are needed before connecting the Automatic Transfer Switch to Source I and Source II. It is recommended that the SPD wire connections use V shape wiring method shown in Appended Figure 1. When limited by practical conditions, and if it is difficult to adopt V shape wiring, one can also use routine direct-parallel-connection method shown in Appended Figure 2. The connection wire should be as short as possible (less than 0.5m) when using direct-parallel-connection method to achieve better protective performance. 2. The connection wires should be multi-core copper wire with a cross-sectional area greater than 10mm 2 (AWG6). 3. Appropriate MCB or Fuse should be serial-connected to the front-end of the SPD for AC power supply. The MCB should have the C tripping characteristic. 4. The power supply should be cut off when installing SPD s. Live installation is prohibited. All the wires must be connected properly, and using correct wires. 5. While the SPD does not need special maintenance, it is recommended that one periodically checks whether the indicators of the SPD are functioning normally and to make sure the modules are not loose. 6. If either of the following situations appear, the SPD has failed and needs to be replaced. 1) The SPD indicator turns red. 2) The SPD remote signal contact becomes an open-circuit. 7. The Wiring method show in Appended Figure 3 is forbidden. If SPD is wired similar to Appended Figure 3, the wiring needs to be modified to Appended Figure 1 or Appended Figure 2. Source I L1 L2 L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Series230 Transfer Switch Load Source I L1 L2 L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Series230 Transfer Switch Load L1 Source L2 II L3 N Connection Wiring Lenth 1m Source II L1 L2 L3 N Connection Wiring Lenth 1m MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Cable line 2m Grouding Cable Lenth 0.2m Controller MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Cable Line 2m Controller Grouding Cable Lenth 0.2 m Appended Figure 1: V Shape Wiring Method Appended Figure 2: Direct-Parallel-Connection Method Source I L1 L2 L3 N Connection Wiring Lenth 1m Series230 Transfer Switch MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Load L1 Source L2 II L3 N MCB or Fuse Surge Protection Device Wiring from Main Circuit to Grand lenth 0.5m Class C Surge Protection Device Connection Wiring Lenth 1m Cable Line 2m Controller Grouding Cable Lenth 0.2m Appended Figure 3: Wrong Connection Method

24 20 Appendix 2 Appendix 2 Glossary ATS NC NO Automatic Transfer Switch Normally Closed Normally Open